Gas cylinder puncturing assembly with deflation function and air rifle

Abstract

The utility model discloses a gas cylinder puncturing assembly with a deflation function and a gas rifle, the puncturing assembly is arranged at the rear end of a gas pipe with a limiting mechanism, and comprises a locking sleeve part which is in threaded connection with the gas pipe and is in sealing fit with the gas pipe, and a puncturing needle which is arranged on the locking sleeve part and is used for puncturing a gas cylinder at a fixed position in the gas pipe, the locking kit is provided with an axial penetrating channel, the pricking needle is connected into the channel in a sliding mode, a matched sealing mechanism is arranged between the pricking needle and the channel, a position adjusting mechanism is arranged on the locking kit, and the position adjusting mechanism makes contact with the pricking needle to adjust the position of the pricking needle in the channel, so that the pricking needle is located at the sealing position or the opening position. At the sealing position, the sealing mechanism is in sealing fit to prevent gas in the channel from passing through, and at the opening position, the gas can pass through the channel. According to the gas cylinder puncturing assembly with the deflation function and the air rifle, the puncturing assembly can exhaust gas which is not used up in a gas cylinder, balance air pressure inside and outside an air pipe, and enable the puncturing assembly to be unscrewed in a labor-saving mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas cylinder piercing assembly with a deflation function and a gas rifle belong to gas gun technical field. BACKGROUND

[0002] The gas rifle is a low-power gun that relies on the pressure of compressed air or gas to launch small metal bullets, and the power of the common gas rifle mainly has three types: spring-piston, gas and carbon dioxide, wherein the carbon dioxide kinetic energy gas rifle uses compressed carbon dioxide gas as power, has the advantages of long range, low noise, small recoil, simple use, convenient maintenance in later period and high safety, and gradually becomes a popular sport shooting and entertainment product, the installation mode of the gas cylinder is different for different types of gas rifles, wherein the rear part of the rifle body of the walking type gas rifle is provided with a gas pipe, the front end of the gas pipe is an exhaust shooting end, a valve assembly is arranged, the rear end is a gas cylinder insertion end, a limiting mechanism is arranged in the gas pipe to fix the position of the gas cylinder in the gas pipe, before shooting, the gas cylinder is inserted into the fixed position in the gas pipe from the rear end of the gas pipe, and then the piercing assembly with a piercing needle is installed at the rear end of the gas pipe, wherein the piercing assembly is threadedly connected with the gas pipe and sealingly matched with the gas pipe, when the piercing assembly is installed, the piercing assembly is gradually screwed into the gas pipe to make the piercing needle pierce the gas cylinder, the carbon dioxide in the gas cylinder is released into the gas pipe, the gas pipe is filled with high-pressure carbon dioxide gas, and when the shooting is completed and the carbon dioxide in the gas pipe is not used up, the high pressure in the gas pipe acts on the thread connection surface of the piercing assembly and the gas pipe, a large compression force is generated, the piercing assembly is difficult to unscrew, and the trigger needs to be continuously pulled until the high-pressure carbon dioxide in the gas pipe is exhausted, thereby causing inconvenience in operation. SUMMARY

[0003] The utility model solves the technical problem that the piercing assembly can discharge the unused gas of the gas cylinder, balance the gas pressure inside and outside the gas pipe, and make the piercing assembly easy to unscrew, thereby overcoming the defects of the prior art.

[0004] The technical scheme of the utility model is as follows: a gas cylinder piercing assembly with a deflation function is installed at the rear end of a gas pipe with a limiting mechanism, and comprises a locking sleeve that is threadedly connected with the gas pipe and sealingly matched with the gas pipe, and a piercing needle arranged on the locking sleeve and used for piercing the gas cylinder at the fixed position in the gas pipe, the locking sleeve has an axial channel, the piercing needle is slidably connected in the channel, the piercing needle and the channel have a sealing mechanism matched therebetween, a position adjusting mechanism is arranged on the locking sleeve, the position adjusting mechanism adjusts the position of the piercing needle in the channel by contacting the piercing needle, so that the piercing needle is in a sealing position or an open position, when the piercing needle is in the sealing position, the sealing mechanism sealingly matches to block the passage of the gas in the channel, and when the piercing needle is in the open position, the gas can pass through the channel.

[0005] Further, the needle is adjusted from the open position to the sealing position when moving in the channel, and the gas cylinder placed at the fixed position in the gas tube is punctured, and the needle is adjusted from the sealing position to the open position when moving out of the channel.

[0006] Further, the adjusting mechanism comprises an adjusting screw screwed on the channel and in contact with the rear end of the needle, the adjusting screw has the same screwing direction as the locking sleeve, the locking sleeve is provided with a coupling mechanism matched with the adjusting screw, and the adjusting screw is coupled with the coupling mechanism and drives the locking sleeve to rotate and loosen synchronously when the needle is in the open position.

[0007] Further, the adjusting mechanism comprises an elastic reset member installed in the channel and in contact with the needle, the elastic reset member is further deformed to generate an elastic force for pushing the needle outwards when the needle moves inwards under the pushing of the adjusting screw, and the elastic force pushes the needle outwards to make the needle always in contact with the adjusting nut when the adjusting screw moves outwards.

[0008] Further, the needle is provided with an air guiding channel, the air inlet of the air guiding channel is located at the front end of the needle, and the air outlet is located on the side wall of the needle.

[0009] The air gun comprises a butt provided with a gas tube, a cover matched with the end of the butt, and the gas tube is provided with the gas cylinder puncturing assembly, and the cover is provided with a wrench matched with the adjusting screw.

[0010] By implementing the utility model, the gas cylinder is placed in the gas tube from the rear end of the gas tube and is placed at the fixed position in the gas tube by contacting the limiting mechanism, the puncturing assembly is installed at the rear end of the gas tube by being screwed on the gas tube through the locking sleeve, the locking sleeve is sealingly matched with the gas tube, the adjusting mechanism pushes the needle to move inwards to make the sealing mechanism sealingly matched to block the gas from passing through the channel, the needle punctures the gas tube placed at the fixed position in the gas tube to make the released gas only discharged from the front end of the gas tube to realize the firing of the bullet, when the gas cylinder is taken away under the condition that the gas is not used up, the adjusting mechanism and the needle move outwards to make the needle in the open position, the unused gas is discharged from the channel, and the locking sleeve is easily loosened to take away the puncturing assembly. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic view of the needle in the open position of the utility model;

[0012] Figure 2 It is a schematic view of the needle in the sealing position of the utility model;

[0013] Figure 3 It is Figure 2 the enlarged view of A;

[0014] Figure 4 It is a schematic view of the butt and the cover.

[0015] The following are shown in the diagram: 1. Air tube; 2. Gas cylinder; 3. Sealing ring; 4. Channel; 5. Needle; 6. Needle tip; 7. Opening section; 8. Sealing section; 9. Limiting section; 10. Locking sleeve; 11. Adjusting screw; 12. Screw; 13. Movable compression spring; 14. Air duct; 15. Sealing assembly; 16. Stock; 17. Cover; 18. Wrench. Detailed Implementation

[0016] Embodiments of this utility model: such as Figures 1 to 3 As shown, a gas cylinder puncture assembly with a venting function is installed at the rear end of a gas tube 1 with a limiting mechanism. The limiting mechanism is a stopper located inside the gas tube 1. When the gas cylinder 2 is placed inside the gas tube 1, the stopper blocks it, placing it in a fixed position inside the gas tube 1. The puncture assembly includes a locking kit on the rear end of the gas tube 1, a puncture needle 5 installed on the locking kit, and an adjusting screw 11. The locking kit includes a locking sleeve 10 threadedly connected to the gas tube 1, a sealing ring 3 on the outer wall of the locking sleeve 10, and a locking screw 11 installed on the locking kit. The locking sleeve 10 has a copper sleeve 19 at its front end and a sealing assembly 15 that limits the locking sleeve 10 and the copper sleeve 19. The locking assembly has an axially penetrating channel 4, which is a stepped hole. The cross-section of the needle 5 is stepped and slides within the channel 4. The needle 5 has a needle tip section 6, an opening section 7, a sealing section 8, and a limiting section 9 with progressively increasing diameters from its front end to its rear end. The adjusting mechanism includes an adjusting screw 11 threaded to the rear end of the channel 4. In use, the gas cylinder 2 is inserted into the gas tube 1 from the rear end of the gas tube 1, and the air is then... The puncture component is placed in a fixed position inside the air tube 1 after contacting the limiting mechanism. It is installed at the rear end of the air tube 1 through the locking kit and threaded connection with the air tube 1. The sealing ring 3 achieves a sealing fit with the air tube 1. Rotating the adjusting screw 11 inward pushes the puncture needle 5 inward. When the opening section 7 passes through the sealing group 15, the puncture needle 5 is in the open position. The puncture needle 5 continues to move inward so that when the sealing section 8 passes through the sealing group 15, the sealing mechanism achieves a sealing fit, blocking the passage of gas in the channel 4. The puncture needle 5 is in the open position, and the needle tip 6 of the puncture needle 5 punctures the gas cylinder 2, releasing the gas in the gas cylinder 2. The released gas can only be discharged from the front end of the air tube 1 to fire the bullet. When removing the gas cylinder before the gas is used up, reverse the adjusting screw 11 to make it move outward. The puncture needle 5 also moves outward under the pressure of the high-pressure gas in the air tube 1, making the puncture needle 5 in the open position. The unused gas is released from the channel 4. The threaded connection between the locking kit and the air tube 1 is not under high pressure, so the locking kit can be easily unscrewed to remove the puncture component.

[0017] As a preferred embodiment, the adjusting screw 11 is an internal hexagonal screw with the same thread direction as the locking assembly. Near the outer end of the channel 4, there is a screw 12 that cooperates with and blocks the adjusting screw 11. After the locking assembly is tightened and installed on the air tube 1, the adjusting screw 11 is rotated inward to prevent the locking assembly from loosening. When the adjusting screw 11 is reversed and moved outward to the position blocked by the screw 1, the needle 5 is in the open position, and the unused gas is released from the channel 4. If the adjusting screw 11 is reversed again, the adjusting screw will not rotate relative to the locking assembly but will drive the locking assembly to be reversed and loosened together. By reversing the adjusting screw 11, the gas release and the unscrewing of the locking assembly are completed in one step.

[0018] As a preferred embodiment, the adjustment mechanism includes a movable spring 13 installed inside the channel 4 and in contact with the needle 5. The movable spring 13 is the elastic reset component, sleeved on the outside of the needle 5, and limited between the stepped surface of the channel 4 and the limiting section 9. The movable spring 13 and the adjusting screw 11 cooperate to limit the needle 5, making the puncture assembly more stable when used as a whole. Since the movable spring 13 and the adjusting screw 11 limit the needle 5 on both sides, the needle 5 will not slip or shake. On the other hand, it also ensures that the gas in the trachea 1 is completely vented. When there is not much gas left in the gas cylinder and the pressure in the trachea 1 is not very high, it may not be possible to push the needle 5 to the open position by pressure. However, the elastic force of the movable spring 13 ensures that the needle 5 is pushed to the open position when the adjusting screw 11 moves outward.

[0019] As a preferred option, to ensure that gas can be released smoothly when the needle 5 punctures the gas cylinder, the needle 5 is provided with a gas intake channel 14. The air inlet of the gas intake channel 14 is located at the front end of the needle 5, and the air outlet is located on the side wall of the needle 5. When the needle 5 punctures the gas cylinder 2 and seals the opening, the gas in the gas cylinder 2 can also be released into the trachea 1 through the gas intake channel 14.

[0020] An air rifle, such as Figure 4 As shown, the gun includes a stock 16 with an internal air tube 1 and a cover 17 that fits onto the end of the stock 16. The air tube 1 contains the aforementioned air cylinder puncture assembly. The cover 17 has a wrench 18 that engages with the adjusting screw 11. Since the cover 17 needs to be removed when changing the air cylinder 2, the wrench 18 is fixed to the cover 17. The cover 17 as a whole can be used as a wrench, which is convenient, labor-saving, and will not be forgotten.

Claims

1. A gas cylinder puncture assembly with a deflation function, installed at the rear end of a trachea with a limiting mechanism, comprising a locking kit threadedly connected to and sealingly fitted with the trachea, and a puncture needle disposed on the locking kit for puncturing the gas cylinder at a fixed position inside the trachea, characterized in that: The locking assembly has an axially penetrating channel, and the needle slides within the channel. A matching sealing mechanism exists between the needle and the channel. The locking assembly is equipped with an adjusting mechanism, which adjusts the position of the needle within the channel by contacting the needle, so that the needle is in a sealed position or an open position. In the sealed position, the sealing mechanism seals and blocks the passage of gas within the channel. In the open position, gas can pass through the channel.

2. The gas cylinder puncture assembly with venting function according to claim 1, characterized in that: As the needle moves inward along the channel, it is adjusted from the open position to the sealed position and then punctures the gas cylinder placed in the fixed position inside the trachea. As it moves outward along the channel, it is adjusted from the sealed position to the open position.

3. The gas cylinder puncture assembly with venting function according to claim 2, characterized in that: The adjusting mechanism includes an adjusting screw threaded onto the channel and in contact with the rear end of the needle. The adjusting screw has the same thread direction as the locking assembly. The locking assembly is provided with a connecting mechanism that engages with the adjusting screw. When the needle is in the open position, the adjusting screw continues to move outward and engages with the connecting mechanism, causing the locking assembly to rotate synchronously and loosen.

4. The gas cylinder puncture assembly with venting function according to claim 3, characterized in that: The adjustment mechanism includes an elastic reset member installed in the channel and in contact with the needle. During the process of the needle moving inward under the push of the adjusting screw, the elastic reset member further deforms to generate a spring force that pushes the needle outward. When the adjusting screw moves outward, the spring force pushes the needle outward so that the needle is always in contact with the adjusting nut.

5. The gas cylinder puncture assembly with venting function according to any one of claims 1 to 4, characterized in that: The needle is equipped with an air intake channel, with the air inlet located at the front end of the needle and the air outlet located on the side wall of the needle.

6. An air rifle, comprising a stock with an internal air tube and a cover that fits onto the end of the stock, characterized in that: The trachea is provided with a gas cylinder puncture component as described in any one of claims 1 to 5, and the cover is provided with a wrench that cooperates with the adjusting screw.

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